Navigation - Garmin GPS 35 LP Technical Specification

Like all GPS receivers, the GPS 35/36 utilizes initial data
such as last stored position, date and time as well as
satellite orbital data to achieve maximum acquisition
performance. If significant inaccuracy exists in the initial
data, or if the orbital data is obsolete, it may take 5.0 minutes
to achieve a navigation solution. The GPS 35/36 Autolocate
feature is capable of automatically determining a navigation
solution without intervention from the host system. However,
acquisition performance can be improved if the host system
initializes the GPS 35/36 following the occurrence of one or
more of the following events:
1) Transportation over distances further than 1500
kilometers
2) Failure of the internal memory battery without system
standby power
3) Stored date/time off by more than 30 minutes
See Section 4 for more information on initializing the GPS
35/36.

2.3 NAVIGATION

After the acquisition process is complete, the GPS 35/36
will begin sending valid navigation information over its
output channels. These data include:
1) Latitude/longitude/altitude
2) Velocity
3) Date/time
4) Error estimates
5) Satellite and receiver status
Normally the GPS 35/36 will select the optimal navigation
mode (2D or 3D) based on available satellites and geometry
considerations. The host system, at its option, may command
6
TM